TY - JOUR
T1 - Clarification of the effect of temperature and strain rate on workpiece deformation behaviour in metal forming processes
AU - Zhou, Wenbin
AU - Lin, Jianguo
AU - Balint, Daniel S.
AU - Dean, Trevor A.
N1 - The authors would like to thank the funding support by EPSRC under the Grant Agreement
EP/R001715/1 on “LightForm: Embedding Materials Engineering in Manufacturing with Light Alloys” and EP/S019111/1 on “UK FIRES: Locating Resource Efficiency at the heart of Future Industrial Strategy in the UK”.
PY - 2021/12
Y1 - 2021/12
N2 - In analysing metal forming processes the deformation mechanism map (elastic-plastic, elastic-viscoplastic, or creep type behaviour) for a particular process is commonly built solely in relation to temperature; which can be acceptable for a defined modest strain rate range. However, for a given temperature, if strain rate variation is large, the deformation mechanism could vary significantly. In this paper, a deformation mechanism map is proposed to clarify the interacting effect of deformation conditions (temperature and strain rate) on workpiece behaviour in metal forming processes. Rate type deformation equations which can be used to comprehensively model the effect of temperature and strain rate on deformation mechanism characteristics are elucidated and as examples, determined for Ti–6Al–4V and Al–Mg alloy.
AB - In analysing metal forming processes the deformation mechanism map (elastic-plastic, elastic-viscoplastic, or creep type behaviour) for a particular process is commonly built solely in relation to temperature; which can be acceptable for a defined modest strain rate range. However, for a given temperature, if strain rate variation is large, the deformation mechanism could vary significantly. In this paper, a deformation mechanism map is proposed to clarify the interacting effect of deformation conditions (temperature and strain rate) on workpiece behaviour in metal forming processes. Rate type deformation equations which can be used to comprehensively model the effect of temperature and strain rate on deformation mechanism characteristics are elucidated and as examples, determined for Ti–6Al–4V and Al–Mg alloy.
UR - http://dx.doi.org/10.1016/j.ijmachtools.2021.103815
U2 - 10.1016/j.ijmachtools.2021.103815
DO - 10.1016/j.ijmachtools.2021.103815
M3 - Article
SN - 0890-6955
VL - 171
JO - International Journal of Machine Tools and & Manufacture
JF - International Journal of Machine Tools and & Manufacture
M1 - 103815
ER -